Date: Thu, 17 Oct 2002 10:39:27 -0400 (EDT)

Author: Daniel A Margulies

Subject: immersion oil for refractive index demo

Post:

Greetings,

I know this was covered recently, but I'm unable to find it in my TAP-L
archive. Does anyone know where to get the immersion oil for use in the
"disappearing glass in liquid" demo? I got some oil from our chemistry
store, but it's clear as opposed to yellow-ish, and doesn't quite have the
same I.R. as the good stuff. Any and all help apprecited. The demo can
be seen at:

http://www.physics.umd.edu/lecdem/services/demos/demosl4/l4-31.htm

Dan Margulies
University of Maryland, College Park
Physics Lecture Demonstration
301.405.5995

--------------------------
"It is the mark of an educated mind to be able to entertain a thought
without accepting it."

Aristotle

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